Once the US Vice President, then star of An Inconvenient Truth, now Nobel Peace Prize winner, Al Gore found a way to focus the world's attention on climate change and in this presentation he once again points towards alternative energy and the progress we have made which he believes gives us a reason to be positive in the face of ever mounting evidence of the severe consequences of global warming.

We speak to guest editors Stephan Lewandowsky, Chair in Cognitive Psychology, University of Bristol and Richard Pancost (Professor of Biochemistry) about their Philosophical Transactions examining the relationship between scientific uncertainty about climate change and knowledge from physical, economic and social perspectives.

It is on the verge of another attempt to extract some of the estimated 400bn barrels equivalent of oil and gas at the top of the world. But drilling in the Arctic is expensive and dangerous. And oil prices have fallen dramatically. Will this and government action thwart Shell's ambitions? Published on Jul 16, 2015 BY THE GUARDIAN.

At the UN 2015 Paris Climate Conference between 30 November and 11 December, governments of more than 190 nations will meet for a new global agreement on climate change.

The world changed a lot since they last met in Copenhagen in 2009, when countries united – but didn't seal the deal. From the rise of renewables to changing attitudes of big polluters like the US, here's why will this year's deal could be better.

Professor James White reviews the basic science behind the Earth's climate system and discusses how humans are impacting it and put the current climate situation into the context of natural variability. White is director of the Institute of Arctic and Alpine Research.

Do you believe in climate change?" It's a common question, and after being posed the question, most of us would probably pause, try to assess our questioner to judge how ugly or pleasant this conversation might soon get, and then possibly offer an answer. But to a climate scientist, it's a rather strange, even bizarre question. The obvious answer is no, but not because climate is not changing, which it is, and not because humans are not a cause, which we are. The problem is that word, "believe."

Around the World Sea levels are rising. Tom Wagner of NASA takes the viewer on a deep dive into sea level rise research as NASA scientists and their colleagues discuss their research on and around the Greenland Ice Sheet. To learn more about NASA research and the study of sea level rise, go here for more information.

Thomas P. Wagner is the NASA Program Scientist for the cryosphere. He directs NASA activities for study of the earth's polar regions, glaciers, sea ice, and related aspects of climate change and sea level rise

Climate One is actively changing the conversation around energy, economy, and the environment. We invite you to make Climate One a part of your story by joining us at The Commonwealth Club of California in San Francisco.Published on Sep 9, 2015

For those who are just beginning to understand the effects of climate change, this video series, published in 2009, brings together in one spot, citizens from many countries relating the effects of climate change on their communities. Published by goodplanet.org.